On the UC300ETH-5LPT there is a jumper just above the 5v input socket. Can someone tell me what this jumper does and what position the jumpers should be in for an external 5v supply. My board was shipped with the jumper in a different position from some of the diagrams in the manual. I've looked for clarification both on the forum and in the manuals, but I seem to have missed them. Thanks.
Mike